Surface mapping using an intraoral scanner with penetrating capabilities
US11006835B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 29, 2018 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Jun 29, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C9/0053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An exemplary optical apparatus has an OCT imaging apparatus with a first light source for low coherence light of wavelengths above a threshold wavelength and a signal detector that obtains an interference signal between low coherence light from the sample and low coherence light reflected from a reference. A surface contour imaging apparatus has a second light source that emits one or more wavelengths of surface illumination below the threshold wavelength, a camera to acquire images from illumination reflected from the sample. The exemplary optical apparatus and/or exemplary methods for using the same can provide reduced errors in generating a dental 3D surface mesh.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.